Spinal correction system and method

Abstract

A spinal construct comprises a first member engageable with a receiver of a first fastener having a shaft fixed with tissue. A second member is engageable with a receiver of a second fastener having a shaft fixed with the tissue. A longitudinal element connects the members. At least one of the members includes a mating element that is releasably engageable with a surgical instrument to manipulate the tissue such that movement of the receivers relative to the shafts is resisted and/or prevented. Surgical instruments, implants, systems and methods are disclosed.

What is claimed is: 
     
       1. A spinal construct comprising:
 a longitudinal element; and 
 a member comprising:
 a body extending from a first end to a second end, 
 a first leg extending from the first end, 
 a second leg extending from the second end, the longitudinal element extending through the legs, the longitudinal element including a threaded outer surface engageable with the legs, 
 a collar including a first aperture and a second aperture, the first leg being disposed in the first aperture and the second leg being disposed in the second aperture, and 
 an actuator extending through a channel of the body and a passageway of the collar, the actuator being configured to translate the collar axially relative to the legs, the actuator being configured to translate the collar over the legs to move the legs between an open configuration and a closed configuration, 
 
 wherein the actuator comprises a head and a shaft extending from the head, the shaft having a diameter less than a diameter of the head, the head comprising a threaded outer surface engageable with a threaded inner surface of the body, the threaded inner surface defining the channel of the body, the shaft comprising a non-threaded outer surface. 
 
     
     
       2. The spinal construct recited in  claim 1 , wherein the legs are spaced a first distance apart when the legs are in the open configuration and are spaced a second distance apart when the legs are in the closed configuration, the second distance being less than the first distance. 
     
     
       3. The spinal construct recited in  claim 2 , wherein the legs are biased to the open configuration by a spring of the actuator. 
     
     
       4. The spinal construct recited in  claim 2 , wherein the threaded outer surface engages the threaded inner surface when the legs are in the closed configuration. 
     
     
       5. The spinal construct recited in  claim 1 , wherein the legs are biased to the open configuration. 
     
     
       6. The spinal construct recited in  claim 1 , wherein the actuator is fixedly connected with the collar. 
     
     
       7. The spinal construct recited in  claim 1 , wherein the legs are pivotably connected with the body. 
     
     
       8. The spinal construct recited in  claim 1 , wherein the collar includes opposite top and bottom surfaces, the apertures each extending through the top and bottom surfaces, the collar comprising an extension protruding from bottom surface and configured to engage the longitudinal element. 
     
     
       9. The spinal construct recited in  claim 8 , wherein the extension includes an arcuate cutout configured for disposal of the longitudinal element. 
     
     
       10. The spinal construct recited in  claim 1 , wherein the first leg includes a first inner surface and the second leg includes a second inner surface, the inner surfaces defining a cavity, the first leg including a first tab projecting into the cavity and the second leg including a second tab projecting into the cavity. 
     
     
       11. The spinal construct recited in  claim 10 , wherein the first tab faces the second tab. 
     
     
       12. The spinal construct recited in  claim 1 , further comprising:
 a second member comprising:
 a second body extending from a third end to a fourth end, 
 a third leg extending from the third end, 
 a fourth leg extending from the fourth end, the longitudinal element extending through the third leg and the fourth leg, 
 a second collar including a third aperture and a fourth aperture, the third leg being disposed in the third aperture and the fourth leg being disposed in the fourth aperture, and 
 a second actuator extending through a channel of the second body and a passageway of the second collar, the second actuator being configured to translate the second collar axially relative to the third leg and the fourth leg. 
 
 
     
     
       13. The spinal construct recited in  claim 1 , wherein an end of the actuator is fixed to the collar to prevent rotation of the actuator relative to the collar. 
     
     
       14. A spinal correction system comprising:
 a spinal implant including a wall; and 
 a spinal construct comprising:
 a longitudinal element, and 
 a member comprising:
 a body extending from a first end to a second end, 
 a first leg extending from the first end, 
 a second leg extending from the second end, the longitudinal element extending through the legs, inner surfaces of the legs defining a cavity configured for disposal of the wall, the longitudinal element including a threaded outer surface engageable with the legs, 
 a collar including a first aperture and a second aperture, the first leg being disposed in the first aperture and the second leg being disposed in the second aperture, and 
 an actuator extending through a channel of the body and a passageway of the collar, 
 
 
 wherein the actuator is configured to translate the collar axially relative to the legs to translate the collar over the legs to move the legs between an open configuration and a closed configuration, and 
 wherein the actuator comprises a head and a shaft extending from the head, the shaft having a diameter less than a diameter of the head, the head comprising a threaded outer surface engageable with a threaded inner surface of the body, the threaded inner surface defining the channel of the body, the shaft comprising a non-threaded outer surface. 
 
     
     
       15. The spinal correction system recited in  claim 14 , wherein:
 the first leg includes a first tab projecting into the cavity and the second leg includes a second tab projecting into the cavity; 
 the wall includes a first end defining a first slot and a second end defining a second slot; and 
 the tabs are spaced apart from the slots when the legs are in the open configuration and are disposed in the slots when the legs are in the closed configuration. 
 
     
     
       16. The spinal correction system recited in  claim 14 , wherein the legs are biased to the open configuration by a spring of the actuator. 
     
     
       17. The spinal correction system recited in  claim 14 , wherein the spinal implant is a bone fastener comprising a receiver and a shaft coupled to the receiver, the receiver including spaced apart first and second arms, the first arm including the wall. 
     
     
       18. A spinal correction system comprising:
 a first bone fastener including a first receiver and a first shaft coupled to the first receiver, the first receiver including spaced apart first and second arms, the first arm including a first wall having a first end defining a first slot and a second end defining a second slot; 
 a second bone fastener including a second receiver and a second shaft coupled to the second receiver, the second receiver including spaced apart third and fourth arms, the third arm including a second wall having a first end defining a third slot and a second end defining a fourth slot; and 
 a spinal construct comprising:
 a longitudinal element, 
 a first member comprising:
 a first body extending from a first end to a second end, 
 a first leg extending from the first end, 
 a second leg extending from the second end, the longitudinal element extending through the legs, inner surfaces of the legs defining a first cavity configured for disposal of the first wall, the first leg including a first tab projecting into the first cavity and the second leg including a second tab projecting into the first cavity, the longitudinal element including a threaded outer surface engageable with the legs, 
 a first collar including a first aperture and a second aperture, the first leg being disposed in the first aperture and the second leg being disposed in the second aperture, and 
 a first actuator extending through a channel of the first body and a passageway of the first collar, and 
 
 a second member comprising:
 a second body extending from a third end to a fourth end, 
 a third leg extending from the third end, 
 a fourth leg extending from the fourth end, the longitudinal element extending through the third and fourth legs, inner surfaces of the third and fourth legs defining a second cavity configured for disposal of the second wall, the third leg including a third tab projecting into the second cavity and the fourth leg including a fourth tab projecting into the second cavity, 
 a second collar including a third aperture and a fourth aperture, the third leg being disposed in the third aperture and the fourth leg being disposed in the fourth aperture, and 
 a second actuator extending through a channel of the second body and a passageway of the second collar, 
 
 
 wherein the first actuator is configured to translate the first collar axially relative to the first and second legs to translate the first collar over the first and second legs to move the first and second legs between a first open configuration and a first closed configuration, 
 wherein the first actuator comprises a head and a shaft extending from the head, the shaft having a diameter less than a diameter of the head, the head comprising a threaded outer surface engageable with a threaded inner surface of the first body, the threaded inner surface defining the channel of the first body, the shaft comprising a non-threaded outer surface, 
 wherein the first and second tabs are spaced apart from the first and second slots when the first and second legs are in the first open configuration and are disposed in the first and second slots when the first and second legs are in the first closed configuration, 
 wherein the second actuator is configured to translate the second collar over the third and fourth legs to move the third and fourth legs between a second open configuration and a second closed configuration, and 
 wherein the third and fourth tabs are spaced apart from the third and fourth slots when the third and fourth legs are in the second open configuration and are disposed in the third and fourth slots when the third and fourth legs are in the second closed configuration.